# Can't make certain expression UPPERCASE

**URL:** <https://community.mp3tag.de/t/cant-make-certain-expression-uppercase/9996>\
**Category:** Support\
**Created:** [March 1, 2010, 8:06am UTC](https://community.mp3tag.de/t/cant-make-certain-expression-uppercase/9996 "2010-03-01T08:06:54Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Lebon14](https://community.mp3tag.de/user_avatar/community.mp3tag.de/lebon14/32/8738_2.png) [@Lebon14](https://community.mp3tag.de/u/Lebon14)\
**Post date:** [March 1, 2010, 11:08pm UTC](https://community.mp3tag.de/t/cant-make-certain-expression-uppercase/9996/3 "2010-03-01T23:08:28Z")

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Sorry... I was a little ambiguous. I followed the advice of the last post here :  
[/t/7341/1](https://community.mp3tag.de/t/7341/1)

I was able to make this part work with every tag I want :  
ACTION »Format value«  
Field: TITLE  
Format string: $caps2(%title%,'/[(. -')

But, I wasn't able to make :  
ACTION »Replace with regular expression«  
Field: TITLE  
Regular expression: (\W)(cd)(\W)  
Replace matches with: $1CD$3  
[\_] case-sensitive comparison

...work.

I'm using Windows 7 Home Premium.

And, I'll try your suggestion 😉

EDIT

...wait that was the same thing as I tried numerous time. So, the replace option doesn't work.

Tried that exactly :  
Action : Replace  
Regular expression : dj  
Replace matches with : DJ  
[X] Case sensitive  
[X] Word-only

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_[View the full topic](https://community.mp3tag.de/t/cant-make-certain-expression-uppercase/9996)._